I decided to help one of my call duck egg hatch, as it was 2 days late and the rest of the eggs hatched. This eggs had no pips, so I slowly made a pip hole, waiting t hours, went back to see if it had complrtrly absorbed all of the blood vessels snd it came out of the egg very weak. It just loed in ghe incubator twitching, now it is in thebbroody twitching, there is a tiny hole, were the yolk sack was absorbed. He cant walk or keep his head up. The duckling is failing to thrive. Any ideas on what is wrong with it? Thank you!